peters



JOHN BROWN, oF UTIGA, New` YORK.

Letters Patent No. message@ April 21,1868.

IMPROVED GAS'IBR FOR FURNITURE.l

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"To ALL WHoM IT MArcoNoERN: t i

Beit known thdt I, JOHN BROWN, of Utica, New York, have -invented-a. new and improved Caster for Furniture and the'like purposes; and I do hereby declare that the following is a full, clear, and exact description' of my said'invention, and of the mode, of operation of the same, reference being had to the accompanying drawings, meking'a-part of this specication, in which- A Figure-1 is a perspective view of the easter, I*`igu1e`2 `z il .perspective view of the roller, end

FigureB- a'sectional view of the roller in the line a b, Iig. l. A is 'the roller; B and C are the halves thereof; B andC, where portions` of the faces of B end C are removed,Izfof'rd'fl2 are conntersinks in the faces of the hemispheres; D is e. circular plate; D, a. circular opening inthe centre; Dinnd D3 nre arms to the plate, and forming'v 'bearingsfor the roller; E is a screw or rivet to"hold'.'tl 1e'parts together; and F is the standard. I i I use a bell o'rsphere forA my roller, composed of'partsso arranged that motion in any direction may be `obtained. Y v

:Theiroller is composed of two hemispheres, B and C. A part of. the face of each is cut away at Bl and Cl, 'as seen 3',leaving'thc centre o i' cach projecting above the lothcrparts;` Between this part and the' circumference, the faoesmay be countersunk or grooved to reduce the-bearingsurfnces;, The circular plate D is slightly lessin diameter than the hernispheres, with an opening in the contre, D1, corresponding in size and position with the .centres ,of-the'faces et' the hemispheres. l'llhe'th'ickness oi' the plate is such that when the parts are put together the whole will form a true sphere. To' the' edges of the plate D are attached two arms, Dgan'd D3. These arms form the bearings of the roller in the standard. The parts of the roller are held together by the screw E,'or u, rivet, running through thecentre of each. The standard may be at one side of thc roller, aswith the'common caster, b ut this is not necessary. i v

' vThe operation will be obvio.us. Wherrthe motion is forward 'or back, the roller turns at right angles to its axis D2 and D3. When themot'ion is sideways, the pluto Dis vertical, n nd thc hemispheres aloneturn round the .rivet as ltheir axis. Thus 'motion is'obtaincd sideways as readily as forward andback. This canonly. 'be donc, with the ordinary caster, after'it has been turned about, and if the furniture isheavy, theedge of the wheel generally first tears the carpet;- and the ordinary ball-casters work :it all times impe'rfectly.

Having thus described m'y invention, what I claim as new therein, and desire to secure by Letters Patent, is; Forming the roller of the parts B and C and the plate D, substantially as described and for the uses and purposes mentioned.

JOHN BROWN.

Witnesses:

JOHN Gn CnocKER, l GEORGE M. WEAVER. 

